-static const uint8_t *avc_mp4_find_startcode(const uint8_t *start, const uint8_t *end, int nal_length_size)
-{
- unsigned int res = 0;
-
- if (end - start < nal_length_size)
- return NULL;
- while (nal_length_size--)
- res = (res << 8) | *start++;
-
- if (res > end - start)
- return NULL;
-
- return start + res;
-}
-